KATHMANDU, APRIL 14

An Australian woman climber successfully scaled the world's tenth highest peak without using supplemental oxygen, expedition organizers said.

In a bid to complete all 14 peaks above 8,000m without using supplemental oxygen in just three years, Allie Pepper, 48, from the Blue Mountains in Sydney, along with her climbing partner Mingtemba (Mikel) Sherpa and Ngima Wanadak Sherpa stood atop Mt Annapurna at around 12:05pm, said Thaneswar Guragai, General manager at Seven Summit Treks.

On her mission ''The Respect Above the Clouds 14 Peaks No O2'', Pepper completed her third mountain without using blotted oxygen, Guragai said.

Read Also: From Blue Mountains, Pepper eyes fastest no O2 ascent of 14 peaks

Pepper began her project from July 2023 by climbing Broad peak in Pakistan and later Mt Manaslu in September 2023. Now, she has to complete 11 remaining peaks by the end of July 2025.

After returning from Mt Annapurna, Pepper will plan for the next summit on Mt Makalu, according to SST.

There are currently only two men in the world that have verified ascents of all 14 x 8000m peaks true summits without oxygen. They took 16 years to complete their projects.